var current_margin = -4;
var myFx;

var get_prev_fgotd = function(page_idx) {
  var request = new Request({
    url: '/reload?page='+page_idx,
    method: 'get',
    onComplete: function(response) {
      $('fgotd_id').set('html',response);
    }
  })
  request.send();
};

var doPrev = function() {
  if (current_margin + 286 <= -4)
    current_margin = current_margin + 286;
  
  myFx.start('margin-left', current_margin);
}

var doNext = function() {
  if (current_margin - 286 > -1144)
    current_margin = current_margin - 286;

  myFx.start('margin-left', current_margin);
}

window.addEvent('domready', function() {
  myFx = new Fx.Tween('fgotd_slide');
});